Hybrid Car
Lithium Batteries
The thing that makes a car a hybrid car
is its use of dual technology. At the moment almost all hybrid
cars use a combination of a gas or diesel engine and an
electric motor. The energy for most of these motors is
generated from the hybrid cars engine and stored in the
batteries. There is however a slight difficulty with this
system: the battery. The batteries that are commonly used in
hybrid cars are still very similar to the standard car
batteries that have been in use for great many years.
While these batteries were adequate to power the normal
requirements of your average car, such as starter motor,
lights, air conditioning, etc. They are not powerful enough to
drive the electric motor of the new hybrid cars. The new hybrid
cars that are actually driven in part by their electric motors
need a far greater source of energy. Traditional batteries are
simply not powerful enough.
This shortfall has, in the past, been made up by simply
using larger amounts of batteries to increase the power
available in hybrid cars. However this solution has, although
practical in the short term, provided its own set of problems.
The power needed to drive the hybrid cars electric motor meant
that a large number of batteries were needed and this meant
increased weight and cost.
The extra weight of these meant more load had to be pulled
by the cars motor (whether gas or electric) and this led to
increased fuel consumption, either to drive the engine or to
provide electricity for the motor. This of course, in part at
least, defeated the object of using the electric motor, which
was to cut fuel costs. Also large amounts of batteries are
expensive to buy and, given the limited longevity of most
batteries, to replace, which all adds to both the initial cost
and the maintenance of the vehicle.
The main hope for improving this situation for hybrid cars
lies with lithium batteries. These are the same batteries that
are currently used to power laptops and cameras. They provide a
much more concentrated and therefore smaller way of storing
energy as electricity. If developed to their full potential
they could provide a long term solution to the problem of
providing sufficient electric power to make hybrid cars a more
practical solution to low cost, low emission motoring.
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